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A B C 10 18 6 90 9 5 15 First day B+A=9+5=14 Second day B+C=5+15=20 fill tank in two days =14+20=34 similarly work done in four days =68 Now remaining work done by A+B- In fifth day, =68+14 =82 Now remaining work =90-82=8 Remaining work done by B+C=8/20=2/5 Total time =5+2/5=27/5
Which quantity has the same dimensional formula as impulse?
Smog is a combination of –
Which of the following is NOT a non-contact force?
A stone of mass 0.08 kg is thrown vertically upwards. Give the direction and magnitude of the net force on the stone during its downward motion. Ignore ...
Which of the following statement is correct?
I. Friction is caused by the irregularities on the two surfaces in contact
II. Friction is a necessary evil
A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to ...
What would happen to the weight of a body in a lift moving upward with uniform speed?
Which of the following is used to initiate nuclear fission?
The ozone hole that has been detected lies in the atmosphere above –
Which of the following statement is/are true?
I. The materials which allow heat to pass through them easily are conductors of heat.
I...
